Control Switch/Timer Relay Test
- Remove control switch/timer relay from instrument panel with wiring still connected. Turn ignition on. Using a DC voltmeter, check for voltage at terminals "B", "I" and "L". See Fig 1
. Both "B" and "I" should have 10-14 volts present. Terminal "L" should indicate zero volts.
- If terminals "B" and "I" show no voltage, check circuit for defective wiring, blown fusible link, open circuit breaker or bad bulkhead connector. If terminal "L" shows voltage, place switch in "OFF" position and allow switch to return to normal position. If voltage at terminal "L" is still present or indicator light remains on, replace control switch/timer relay.
- If control switch/timer relay voltages are correct, place control switch in "ON" position. Voltage should be present at terminal "L" for about 10 minutes and indicator light should be on. If light is off or no voltage is present at terminal "L", replace control switch/timer relay.
Courtesy of CHRYSLER MOTORS.